Funnel bracket



Sept. 12, 1944. s. P. AMBROSE FUNNEL BRACKET Filed Jan. 2a, 1943 2 mm MA L w M an Patented Sept. 12, 1944 FUNNEL BRACKET Samuel P. Ambrose, Chester,

American Viscose Corporation,

Pa., assignor to Wilmington,

Del., a corporation of Delaware Application January 28, 1943, Serial No. 473,794

6 Claims.

This invention relates to improved funnel guide brackets and is particularly concerned with the provision of a simple arrangement whereby the funnel guide may be swung out of the way when it is desired to dofi? the spinning bucket with which it is associated.

It is an object of this invention to provide a simple arrangement to enable the funnel guide to be lifted and swung out of the way during domng regardless of the positionof the funnel and its bracket with respect to their traverse. One of the prime objects of the invention is to reduce funnel breakage by constructing the funnel bracket in such a manner that the dofi'er must seize the bracket itself in doffing, thus avoiding any straining of the funnel guide and thereby reducing funnel breakage. It is a further object of this invention to so construct the funnel guide bracket that, after the guide has been swung out of the way for dofllng it may quickly and positively be replaced into its proper spinning position with the least possible precision in the movements of the operator in thus restoring it. Further objects and advantages of the invention will be apparent from the description hereinafter.

In the drawing, illustrative of the invention,

Figure 1 is a perspective view, looking from the rear, of the spinning funnel bracket of the invention and Figure 2 is a perspective view, looking from the rear, showing the spinning funnel swung out of operative position.

The invention may be applied to conventional spinning machinery with but slight modifications thereof. There is shown in the drawing a spinning machine having a traverse rail comprising two horizontal rods 2 and 3 which are reciprocated as a unit in a vertical plane and which carry at spaced intervals therealong a number of bearing plates 4 which are secured thereto in any conventional manner as by suitable clamping plates 5 therebeneath. Instead of mounting the funnel bracket arm 6 pivotally upon the bearing plates 4 as has been done heretofore, the present invention provides a vertical post I which is fixed upon and stands upright on this hearing plate. The post 1 has a non-circular crosssection through the greater part of its length. But at its top 8 it is provided with a circular cross-section for purposes explained hereinafter. The bracket arm 6 in which the funnel 9 is securely mounted in any conventional fashion is provided with a fixed bushing l0 having an intemal bore II which is adapted to fit snugly the non-circular portion of the upright post I. The bushing l0 within the bracket arm should be of suilicient length to prevent the development by wear of any appreciable play between it and the upright post 1. While the bore ll of the bushing l0 and the post I as shown are of a square crosssection, any other rectangular or non-circular cross-section is satisfactory. The bracket arm 6 may be formed with a pair of studs !2 which are adapted to be received in the guideways between pairs of upright projections l3, to provide a somewhat more' rigid two-way positioning of the funnel 9 and its bracket arm 6.

At the top of the post 1, a plate It is secured in fixed position and has a depending finger l5 which is arranged to control the direction of swing and to limit the swinging motion of the bracket arm 6 about the circular portion of the post I. Where the non-circular cross-section of the upright post is a square as shown, the finger I5 is preferably arranged to prevent the bracket arm 6 from swinging a full from its normal operating position with respect to the post 1 and to prevent its being swung in the opposite direction. Otherwise, the shoulder l6 between the square and the circular cross-sections of the post (which is clearly seen in Figure 1) would not serve as a bearing to support the funnel bracket in the position shown in Figure 2 where it is swung out of normal operating position. Where another type of cross-section is employed for the post 1, such as a rectangular but non-square cross-section, the finger l5 would be unnecessary to prevent the funnel bracket 6 from falling after being swung from its normal operating position but it would preferably be used to prevent the funnel from being swung into the way of other parts of the machine which might cause breakage of the funnel or the funnel bracket.

Preferably, the length of the non-circular portion of the post I should be suflicient to assure that the entire shank of the funnel is above the level of the spinning bucket or the level of the cover plate of any chamber housing the spinning bucket, if such a chamber is used. In the drawing, there is shown schematically a spinning bucket ll and the cover plate I8 01 a housing therefor. The non-circular portion of the post 1 is preferably, therefore, at least approximately as long as the length of the funnel shank 9 which depends below the bracket arm 6. To doif the spinning bucket, the dofier must apply lifting pressure to the arm 6 near the post 1, otherwise any lifting force would tend to bind the arm 6 in its normal resting position on the post 1. Thus there will be no tendency of the doffer to apply pressure to the funnel which has been a common cause of breakage in the past.

The distance between the opposite projections I3 forming the guideways on plate l preferably gradually decreases from their top surfaces to facilitate entrance of the stud guides l2. If desired, the 'ways may be tapered all the way from the top to the bottom and the studs 12 may be provided with a complementary taper to fit snugly within them at the desired point. If desired, the gudgeons may be of circular rather than rectangular or trapezoidal cross-section. Again, an adjustable detent may be provided upon the bearing plate 4 to limit the downward motion of the rear end of the bracket arm 6. Such an adjustable stop could be adjusted to compensate for wear and distortion of the sleeve III which normally rests upon the bearing plate and serves to limit t he downward motion or the bracket arm 6.

The term "funnel guide" as used in the specification is intended to be generic to tubular type filamentary guides which are adapted to conduct the filamentary material longitudinally therethrough whether or not such guides are of typical funnel shape.

While preferred embodiments of the invention have been disclosed, it is to be understood that changes and variations may be made without departing from the spirit and scope of the in- I claim:

1. In an apparatus for guiding filamentary material, a reciprocable support, a post having the lower portion of its length oi! non-circular cross-section and an upper portion of circular cross-section fixed on the support, an arm having a bore of non-circular cross-section slidably mounted on the post, and a tunnel guide carried by the arm approximately parallel to the post, the length of the non-circular portion of the post being comparable in magnitude to the length 0! the guide extending downwardly from the arm.

2. In an apparatus for guiding filamentary material, a funnel guide for filamentary material, an arm for carrying the guide into and out of operative position, a reciprocable support for the arm, means for mounting the arm for sliding motion with respect to the support to bring the guide into and out of operative position in a direction substantially parallel to the direction of reciprocation of the support for th arm, means associated with the arm and its support to prevent swinging of the guide during displacement with th arm from its operative position at least as great as the approximate length of the guide extending from the arm and to permit swinging upon exceeding that minimum displacement, and stop means associated with th support for limiting the relative swinging motion.

3. In an apparatus for guiding filamentary material, a reciprocable support, a guide member fixed on the support having the lower portion of its length of non-circular cross-section and an upper portion of circular cross-section, an arm having a bore of non-circular cross-section slidably mounted on the guide member, a timid guide carried by the arm, and stop means ciated with the guide member for limiting the relative swinging motion.

4. In an apparatus for guiding filamentary material, a reciprocable support, an upright on the support having the lower portion of its length of non-circular cross-section and an upper portion of circular cross-section, an arm having a bore of non-circular cross-section slidably mounted on the upright, a funnel guide carried by the arm, and a stop member associated with the circular cross-section of the upright to limit swinging motion of the arm about this portion of the upright.

5. In an apparatus for guiding filamentary material, a reciprocable support, an upright on the support having a square cross-section throughout its lower portion and having its crosssection turned down to circular form an an upper portion of its length, an arm having a bore of square cross-section mounted for sliding motion upon said upright, said arm carrying said funnel guide and depending stop members associated with the top of the upright member andarranged to prevent swinging of the arm through a full 90 angle.

6. In an apparatus for guiding filamentary material, a reciprocable support, an upright on the support having a square cross-section throughout its lower portion and having its crosssection turned down to circular form in an upper portion of its length, an arm carrying a tunnel guide having a bore of square cross-section for sliding motion upon said upright, and depending stop members associated with the top of the upright member and arranged to prevent swinging of the arm through a full 90 angle, the portion of said upright having a square cross-section being at least as long as approximately'the length or the portion of the funnel extending below the arm.

SAMUEL P. AMBROSE. 

